vintage Seiko Chronograph Automatic,

• Movement: Seiko Caliber 6139 automatic mechanical chronograph with a single 30-minute sub-register layout at the 6 o’clock position. • Dial Configuration: Features a deep teal-blue dial with blocky white hour markers, a day/date window at 3 o’clock, and a distinctive orange or yellow chronograph hand. • Case Architecture: A distinctively retro, angular cushion case shape crafted from stainless steel with integrated-style lugs typical of early 1970s styling. • Era: Produced throughout the 1970s (roughly 1971–1977)